Casement window control



March 7, 1939. o. L. KEISER CASEMENT WINDOW CONTRO Filed Feb. 4, 1938 INVENTOR Patented Mar. 7', 1939 UNITED STATES AT-ENT OFFICE '7 Claims.

This invention relates to a control means for casement windows, the invention being applicable also to other swinging structures than casement Windows, if desired.

An object of the invention is to provide an improved hinge structure for casement windows and the like whereby the hinges will serve as guides for the vertical movement of the window during adjustments of the height thereof, performing this additional function without in any way interfering with the usual operation of such hinges.

Another object is to provide, in combination with guide means afiorded by the hinges constructed as aforesaid, a lever particularly well adapted to adjust the vertical position of .the window from the interior of the dwelling.

Still another object of the invention is to furnish, in combination with improved means to cooperate therewith, a Weather strip member which will more efiectively exclude wind or storm driven substances from passage under the window.

Yet another object is to provide, as a new and improved article of manufacture, a hinge structure suited to guide the vertical movements of a sash and having an attachment furnished with a control lever for imparting vertical movements to the sash which is equipped with said hinge structure.

Other objects, advantages and features of invention will hereinafter appear.

Referring to the accompanying drawing, which illustrates what is at present deemed to be a preferred embodiment of the invention:

Fig. 1 is a face view of my newly invented window construction, illustrating the same as it appears from the interior of a dwelling when the window is closed and in its lowered, locked position. In this View the lower, right hand corner portion of the window casing is sectioned sufiiciently far back from the inner side thereof to disclose the underlying part of the window sash more clearly.

Fig. 2 is a sectional detail taken on the plane indicated by angular line 2-2 on Fig. 1.

Fig. 3 is a reproduction of the greater portion of Fig. 2 but shows the position of the sash operating lever at the opposite limit of its swing,

at which time the sash is in its raised, unlocked position. I

Fig. 4 is a transverse section on line 4-4 of Fig. 3.

Fig. 5 is a view showing in perspective, the group of hinge elements with which the locking lever cooperates, said elements being so grouped as to indicate their relative positions when assembled.

Fig. 6 is a perspective View of the locking lever, its pivot and the link which it actuates, these parts also being so grouped as to indicate their relations in the assembled condition.

Referring in detail to the drawing, the'casement window sash 5 is swingably secured to the jamb member 6 by means of an upper hinge T and a cooperating lower hinge 8. Said upper hinge has a stationary wing which is provided with pivot ears 9 that are sufiiciently spaced apart to allow the pivot ear ll of the movable part of the hinge a sufficient vertical movement 1 of the sash for it to be moved to and from a locked position in relation to window sill [2. This vertical movement of the sash is effected by means of a locking lever I5 which cooperates with the structure of the lower hinge 8, said lower hinge also having its stationary pivot ears [6 sufiiciently spaced apart to permit its movable pair of pivot ears H the same amount of vertical movement afforded by the structure of the upper hinge I.

The locking lever [5 has its bearing upon a stationary pivot l8 that extends across and is fixed to a housing consisting of a back plate or housing member l9 having an angular marginal flange 2! against which abuts the stationary wing 22 of the hinge 8, suitable screws holding said hinge wing against said flange. The housing thus provided for the inner portion of lever I5 is open at its front edge and along the greater portion of its top to provide clearance for the swing of said lever. Y

The locking lever I5 is operatively connected with the movable wing 8w of the hinge 8 by means of two parts, an L-shaped slidable plate 25 and an arcuate link 26 which is pivotally connected at one end at 21 to said plate 25 and at its other end at 28 to said lever in a spaced relation to the'fulcrum pivot l8 of the latter. Said plate 25 has spaced apart apertured ears 29 which have a working fit around the hinge pin 8h of the lower hinge, said ears 29 dovetailing with the ears ll of said hinge and being together with them slidable upon the hinge pin 8h. Said ears 29 are both positioned to exert a lifting force upon the hinge ears ll. The concave side of said link is directed toward the lever pivot l8 in order to keep said pivot from obstructing the movement of said lever through the wide swinging thereof (approaching degrees) which is deemed to be desirable. As

shown in detail in Fig. 5, the L-shaped plate 25 has its bearing ears 29 formed upon the extremity of its horizontal limb and has its pivot hole 2910 (for pivot 21) located near the juncture of its two limbs. Its upwardly directed limb 25:1: aids in guiding its vertical movement within the aforementioned housing. Recess 251' of plate 25 r accommodates lever pivot [8.

In Fig. 1 the window sash 5 isshown in full lines in its lowered position In this position the sash cannot be swung in either direction because the sill l2 obstructs its inward swing and the stop strip 36 prevents its outward swing. At this time the lever is in its upper position as shown in Fig. 2. When said lever is swung downwardly to the position thereof shown in, Fig. 3, said lever, by means of the arcuate link 26 and the L-shaped member 25, acts upon the movable wing of the lower hinge 8 and thus lifts the sash to which said movable hinge wing is attached, the upper hinge l merely acting as an auxiliary guiding means for the sash during this operation. The sash is thus lifted until its lower edge, indicated by the dotted line 31 in Fig. l, clears the sill l2, and the sash may then be swung inwardly to open the window to the desired extent. In Fig. 1, the upper edge of the raised sash is indicated by the dotted line 38, which shows that the fully raised sash is still clear of the header 39.

Referring to further details of construction, it has already been stated that the stationary wing 22 abuts against the end of the marginal flange 2B of the housing plate l9 and combines therewith to complete a casing. As well shown in Fig. 4:, a small screw headed bolt H3 in conjunction with a bushing ii forms the pivot of the lever l5. Said bushing has a fiat head 42 formed as a flange which constitutes a wear plate interposed between the casing plate [9 and the portion of the lever l5 adjacent to its pivot. Said bushing 4| is desirably made of brass. A nut 43 is screwed onto the bolt l8 to complete this part of the structure.

The completely lowered sash extends so far below the upper edge of the sill l2 that it makes a very eficient weather proof structure.

The lever I5 is shown formed as a rather thick metal strip shaped to produce an arm that is curved somewhat in an edgewise manner, the convex edge of this arm being directed towards the jamb 5 when the lever is in its upwardly swung position. A groove or recess 45 is cut into the jamb 5 which contains nearly all the upswung lever, leaving only enough of its free end portion exposed to render it readily accessible for operation. a The hinge structures I and 8, together with the lever l5 and its operating connection with hinge 8, are salable as sash controlling means constituting an article of manufacture which may be' applied to sashes and doors varying greatly in their structural details. The upper pivot 25 of the lever link 26 moves past dead center and slightly in front of lever pivot Hi to lock the raised sash against gravitating to its lowered position.

It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes 'all modifications and equivalents which fall Within the scope of the subject matter claimed.

What is claimed is:

1. In a structure of the kind described, a stationary housing, a hinge one wing of which forms 'to impart a sliding movement to said movable hinge wing, a lever pivot extending athwart said housing, a lever pivotally mounted upon the latter pivot, and a link pivotally connecting said lever with said plate.

' 2. The subject matter of claim 1 and, said lever pivot cooperating with the Walls of said housing to guide the sliding movements of said plate.

3. In a device for raising and lowering a swingable window, a hinge structure having a stationary wing and a wing which is secured to said window, said structure'including a substantially vertical hinge pivot whereon the latter wing slides and swings, a vertically swingable lever pivotally mounted upon a substantially horizontal pivot pin carried by said structure, and'means including an arcuate link connecting said lever with said slidable wing to impart to it a sliding movement in relation to said stationary wing, said horizontal pivot occupying the concavity resulting from the arcuate form of said link, when said lever is adjusted to the position which it occupies when said window is in the raised position.

4. In a device for raising and lowering a swingable window, a hinge housing, a substantially vertical hinge pin mounted upon said housing, a hinge one wing of which is secured in position to form a part of said housing and the other wing of which is slidable and swingable upon said pin, a member slidably mounted within said housing in an operative relation to said slidable hinge wing to impart a slidable movement to said slidable wing, a lever pivoted to said housing to operate said member, and a link operatively connecting said lever with said member.

5. The subject matter of claim 4 and, said link being arcuate and having its concavity positioned to embrace the pivot of said lever during the operation thereof.

6. In a structure of the kind described, a housing member, a hinge having two wings one of which is mounted in a stationary'relation to said housing member and forming therewith .a housing and the other wing of which is slidable and swingable, a hinge pivot supported by said housing whereby the latter wing is guided in its two said movements, an L-shaped plate slidably mounted in said housing, one limb of said plate having an ear which slidably connects it with said pivot, said ear engaging an ear of the movable hinge wing to impart a sliding movement thereto, the other limb of said L-shaped plate serving to. guide the movements thereof within said housing, a lever pivotally supported by said housing, and a link operatively connecting said lever with said L-shaped plate,

7. The subject matterof claim 6 and, said L- shaped plate having a recess extending into its edge adjacent to the juncture of its limbs toprevent its movement being obstructed by the pivot of the aforesaid lever.

OSCAR L. KEISER. 75 

